Letter to William Osler, June 20, 1917
Letter to William Osler, May 31, 1917
Letter to William Osler, May 16, 1917
Letter to William Osler, September 5, 1916
Letter to William Osler, December 31, 1915
Letter to William Osler, December 8, 1915
Letter to William Osler, November 26, 19115
Letter to William Osler, November 25, 1915
Letter to William Osler, November 23, 1915
Letter to William Osler, September 7, 1918